IKA RV 10 control Instrucciones De Manejo página 49

Starting automatic distillation
 Press the rotary/push knob with the "Start" or "Continue" field se-
lected. If the "100% distillation" or "Drying" options are active, then
the distillation will start immediately, provided that the necessary con-
ditions are fulfilled.
When the "Volume" distillation method is used, a further screen with
additional distillation parameters will be displayed.
 Turn the rotary/push knob to the right/left to select a menu option.
 Press the rotary/push knob.
 Turn the rotary/push knob to change the value (the magnitude of the ch-
ange is dependent on the speed at which the knob is turned).
 Press the rotary/push knob again to complete the process.
Distillation
This field indicates the distillation method selected in Settings/Distillation
and cannot be changed..
Amount
Enter the amount, which the flask contains.
Distillate
Enter the amount, which you want to distill off.
Efficiency
Balancing requires a precise thermal efficiency to be entered.
The efficiency is dependent on a combination of factors that affect the
distillation process, so it must initially be estimated. The first time a dis-
tillation process is carried out should therefore be used for calibration.
Following completion of the distillation process, determine the quantity of
distillate produced and calculate the actual heat rejection rate according
to the following formula:
. m
η
η =
th
P
m
(gem)
η Actual efficiency
P
η Estimated efficiency
th
m Measured quantity of distillate
(gem)
m Specified (calculated) distillate quantity
(calc)
For subsequent distillations, the actual calculated efficiency should be
entered; this will ensure that subsequent automatic distillations under the
same distillation and ambient conditions are performed with sufficient
precision.
End of automatic distillation
Automatic distillation will stop when the following conditions are met::
Volume controlled
The specified quantity of distillate has been reached.
100% distillation
The measured cooling water temperature has fallen below a target value,
indicating that the solvent is fully evaporated.
The distillation can also be stopped manually:
 Press the rotary/push knob with the "Stop" display field selected..
(calc)
"User-defined Distillation" menu
"User-defined Distillation" display screen
1. Operating mode display
2. Control field for distillation procedure
3. Vacuum display (actual value)
4. Vacuum display (target value)
5. Control field for „Start/ Stop" distillation
6. Timer display
7. Vacuum-rotation-time graph
8. Display of flow rate, differential temperature, and condenser
heat rejection rate
9. Rotary speed display (target value) and speed measurement unit
10. Error message in case of fault, otherwise status indicator
 Turn the rotary/push knob to the right/left to select „Procedure".
 Press the rotary/push knob.
 The display will show the "Procedures" screen.
 Turn the rotary/push knob to the right/left to select a procedure.
 Press the SET button.
 The procedure selected will be used for the subsequent distillation.
Note: The vacuum-rotation-time graph is displayed for each procedure.
The parameters can be changed for each procedure. Please refer to the
next section for instructions on how to do this. The sequence used for a
manual distillation process can also be saved as a procedure. see "Manual
Mode" section.
49